Stayed a night here for a meeting the next day in Karlsruhe. The firm I work with has introduced a new limit on budget for hotels in Europe. With both Renaissance and Novotel in Karlsruhe over the budget, this was the next best option.
Location: There are goods and bads of its location. The good points: it is a few hundred metres from the main train station, it is on the road with the tram line, it is opposite the city's park, it is a few minutes walk to the exhibition/congress centre (I believe) and it is in a quiet neighbourhood. Not so good point is there isnt any cafe or restaurant within walking distance, as far as I have managed to work out. I asked the reception, and they told me there is a German beer house and an Italian restaurant both a couple of blocks away but they dont seem too enthusiastic.
Room: well, they upgraded me to a suite on the 10th floor, access by a separate lift which goes to the 10th floor only. The room is good, but perhaps not a suite you would expect with sitting room, dining room, etc etc. It was a big room, but not much bigger than a large room in a US hotel, with two double beds, a sofa suite, a working table, fridge, TV, a bathroom and a separate WC. The wifi worked straightaway with very good signal. The upkeep and maintenance are good, beds are comfortable.
Food: There is a restaurant and a bar in the hotel. But the restaurant was fully booked that night, when I visited at about 8pm. Apparently, three tour groups arrived and booked out the restaurant. The bar was packed and smokey, so I headed back to my room for room service instead. Poached salmon in a saffron sauce, with new potatos and spinach. It was very good indeed ! I made sure I was late enough before I headed down for breakfast the next morning to avoid the crowd from the tour groups. There was a good choice or fruits, yoghurts, cereals, breads, cold meats, and cooked breakfast at the buffet.
Reception: They upgraded me to a suite, as I mentioned. They were very helpful, and efficient. The only complain about the reception is the very blue lighted wall behind the receptionists, which makes it very uncomfortable to stand in front of the reception for any length of time.

I stayed here with my partner for a couple of nights in July 2011. I can't remember the exact price I paid per night but remember being overwhelmed at the how good (low) it was for the standard of the hotel. It was very comfortable, free wifi was offered in our room, the location was great, the room was clean and very comfortable.

During our stay my partner had a minor medical emergency. The staff at the hotel were supportive, helpful and understanding and made a frightening situation a lot more bearable.

This is a quality hotel, I highly recommend it.

The hotel is in a pretty decent location, within easy walking distance of the main train station and the city centre. From the outside the hotel is a fairly grim looking building, almost like a 1970's apartment block. Inside, it's slightly better but the room was small and there wasn't enough pressure from the shower. At £52 for a twin room on a Saturday night it's not expensive so it's a reasonable option if staying for a short while in Karlsruhe.

Positives - for a big city the free hotel parking was safe and hotel in a safe area . park/zoo opposite nice , 5 mins to station. clean and all usual big hotel perks.
Weekend rates prvide a good price (60 euro for a room for 3)

To consider - breakfast is the biggest rip off of any hotel I have used at 20 EURO EACH (hence my low value score) !!!
They had a coach party in the resturant making a huge noise as they prayed as a group(I have nothing against relious groups - just the noise level from this group in the middle of a hotel restuirant) worse than a party of football fans after alcohol. Nobody bothered to point out noise level from hotel staff .
No milk in room had to chase from receptionm to resturant and ask twice to get more than a couple of milks .

Overall with weekend rate and for a stop over was a good choice just a shame you need to get a breakfast somewhere else (station has lots of options)